Where are the Oil rig parts?
Please click the hyper-links for images

The CIT blueprints is on the small office on the second floor. There is room with checkered tiled floors and a small office behind it. It is at the back wedged between the wall and filling cabinet.

Where are the oil rig parts?

1 is in the crew quarters
Crew 1
Crew part

1 in the lower level mechanical room (Blue box structure) 
Blue box building
Part in blue box building 

1 on lower level deck next to the main drill line. If you are looking at the blue building head to your right till you find an a camp ground. Next to that should area as seen in link below.
Main drill line area 


2 inside the mechanical room/Interior cell.